If needed per your model, preheat the air fryer to 400 degrees F. Spray the basket or tray with nonstick spray.
Wash and dry the zucchini. Cut the zucchini into ½ inch by 4-inch sticks. Gently pat the zucchini sticks with a paper towel to remove any excess moisture.
Prepare the breading station by setting up 3 shallow dishes. In the first dish, mix the flour with the salt. In the second dish, whisk the egg with 2 tablespoons of water. In the final dish, combine the panko, Parmesan, garlic powder, and red pepper flakes.
Dredge the zucchini sticks in the four, shaking off the excess, then dip them into the egg mixture. Allow the excess egg to drip off and then finally coat the sticks in the breadcrumb mixture, pressing to adhere.
Place the breaded zucchini in the greased basket, working in batches if needed to leave space between each fry, and spray the tops of the zucchini fries with cooking spray. Air fry for 7 minutes at 400 degrees F. After 7 minutes, remove the basket or tray from the air fryer and flip the zucchini. Spray again with cooking spray and return to the air fryer. Air fry for an additional 6-7 minutes or until the breading is golden.
Serve immediately with your favorite dipping sauce.
Notes
Storage: While Zucchini Fries are best served fresh, if you happen to have leftovers, store the zucchini fries in an airtight container for 3 days. Reheat the zucchini fries in the air fryer at 360 degrees F for 2 minutes per side. Parmesan: Freshly grated parmesan cheese is best. Panko: If you don't have panko breadcrumbs, use regular breadcrumbs.